Lyman Universal Spring Loaded Decapping Die

The Lyman Universal Spring Loaded Decapping Die is a dedicated case prep tool built to remove spent primers from fired brass across a broad range of calibers. Whether you're running rounds through a progressive press or prepping batches on a single station or turret setup, this die handles the job with a spring-loaded decapping rod designed to reliably eject primers from the pocket every cycle. It's the kind of workhorse tool that belongs in any serious reloader's bench — especially if you process brass in multiple calibers and want one solution that covers most of them.

The spring-loaded rod system is the core of its reliability. Unlike manual or fixed decapping pins that can stick or fail to fully seat, this design uses spring tension to ensure forceful, consistent primer ejection. That means fewer stuck primers, less downtime troubleshooting, and more consistent case prep, whether you're running 50 rounds or 500. It works across calibers from .22 through .45, making it genuinely universal for handgun and rifle reloaders who load multiple rounds — a real time-saver if you jump between 9mm pistol loads, .223 rifle, and .308 loads on the same press.

Setup is straightforward: it threads into your press like any standard die. The spring-loaded mechanism requires no special adjustment or maintenance beyond basic reloading practices. Just one note: this die is purpose-built for Boxer-primed brass. If you ever encounter Berdan-primed cases in your brass mix, you'll need a different approach for those — they're not compatible with this system.

Key Features

• Spring-loaded decapping rod delivers forceful, reliable primer ejection on every stroke
• Compatible with progressive, turret, and single station presses
• Works on calibers .22 through .45 (excludes .378 and .460 Weatherby)
• Handles Boxer-primed brass only
• Reduces downtime from stuck primers or incomplete decapping

Specifications

Frequently Asked Questions

What calibers does this decapping die work with?

The Lyman Universal Spring Loaded Decapping Die handles calibers from .22 through .45. The two exceptions are .378 Weatherby and .460 Weatherby, which require different solutions.

Can I use this die on my progressive press?

Yes. This die is designed to work on progressive presses, as well as turret and single station presses, making it versatile across different reloading setups.

Will this work on Berdan-primed cases?

No. This die is designed for Boxer-primed brass only. Berdan-primed cases require a different decapping approach and are not compatible with this die.

How does the spring-loaded system improve decapping?

The spring-loaded rod delivers forceful, consistent primer ejection with each stroke, reducing the risk of stuck primers or incomplete decapping that can occur with fixed pins or manual methods.